31023030111102 has 20 divisors (see below), whose sum is σ = 69514567471536. Its totient is φ = 10341010036980.

The previous prime is 31023030111097. The next prime is 31023030111109. The reversal of 31023030111102 is 20111103032013.

31023030111102 is a `hidden beast` number, since 31 + 0 + 230 + 301 + 1 + 1 + 102 = 666.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31023030111109) by changing a digit.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 95750092774 + ... + 95750093097.

Almost surely, 2^{31023030111102} is an apocalyptic number.

31023030111102 is an abundant number, since it is smaller than the sum of its proper divisors (38491537360434).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

31023030111102 is a wasteful number, since it uses less digits than its factorization.

31023030111102 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 191500185885 (or 191500185876 counting only the distinct ones).

The product of its (nonzero) digits is 108, while the sum is 18.

Adding to 31023030111102 its reverse (20111103032013), we get a palindrome (51134133143115).

The spelling of 31023030111102 in words is "thirty-one trillion, twenty-three billion, thirty million, one hundred eleven thousand, one hundred two".